GB1137012A - Circuit breaker with improved current path and contact means - Google Patents

Circuit breaker with improved current path and contact means

Info

Publication number
GB1137012A
GB1137012A GB14547/67A GB1454767A GB1137012A GB 1137012 A GB1137012 A GB 1137012A GB 14547/67 A GB14547/67 A GB 14547/67A GB 1454767 A GB1454767 A GB 1454767A GB 1137012 A GB1137012 A GB 1137012A
Authority
GB
United Kingdom
Prior art keywords
contact
arcing
contacts
main
circuit breaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14547/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1137012A publication Critical patent/GB1137012A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H9/383—Arcing contact pivots relative to the movable contact assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

1,137,012. Automatic circuit breakers; contact arrangements. WESTINGHOUSE ELECTRIC CORP. 30 March, 1967 [14 April, 1966], No. 14547/67. Heading H1N. In a heavy current automatic circuit breaker, the contact structure comprises a pivotal carrier 73 coupled to an overcentre spring toggle actuating mechanism 53; a movable arcing contact 97 connected to one terminal 23 of the breaker by a flexible conductor 131 and cooperating with a fixed arcing contact 29 connected to the other terminal; and a movable main bridging contact 99 co-operating with fixed main contacts 33, 43 connected respectively to the two terminals, the movable main and arcing contacts being pivotally mounted upon the carrier 73 at 101 in such a way that, during opening, the first break is at contact 33, the second at 43 and finally at the arcing contact 29. To this end the main contact 99 is biased away from carrier 73 by two springs (111, 115), (Figs 5-7, not shown), on opposite sides of pivot 101 while the arcing contact 97 is biased anticlockwise about 101 by a spring 105. Any are produced at the main contacts, due to the high resistance of the arcing contacts and conductor 131, is thus produced at the contacts nearest to an arc-chute 147. The circuit breaker is provided with a tripping device as described in Specification 911,934.
GB14547/67A 1966-04-14 1967-03-30 Circuit breaker with improved current path and contact means Expired GB1137012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54253666A 1966-04-14 1966-04-14

Publications (1)

Publication Number Publication Date
GB1137012A true GB1137012A (en) 1968-12-18

Family

ID=24164260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14547/67A Expired GB1137012A (en) 1966-04-14 1967-03-30 Circuit breaker with improved current path and contact means

Country Status (2)

Country Link
JP (1) JPS4539158B1 (en)
GB (1) GB1137012A (en)

Also Published As

Publication number Publication date
JPS4539158B1 (en) 1970-12-09

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